There is an ending to the Path and it's a good revelation and Gameplay mechanic IMO. People are just sour that they didn't get a trophy or there's no "reward". There is in fact a reward but the reward isn't for you.
It's really cool. Just follow what the player, game and Atlas tell you and you won't be disappointed.
Edit: But yes, keep hold of the Stones until your final (11th) encounter with Atlas.
spoilers:
is it basically that the travellers that go through the Atlas past end up creating a star system, and that's how the galaxy was created?
From where I stopped (8th stones) the lore didn't really told me much, but I know about the final reward already.
From where I stopped (8th stones) the lore didn't really told me much, but I know about the final reward already.
Don't mind spoilering this for myself because after losing my save atmost at the end of the path I'm not gonna bother redoing it again.